CN108147795A - Kilneye castable after a kind of 2500T cement kilns - Google Patents

Kilneye castable after a kind of 2500T cement kilns Download PDF

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Publication number
CN108147795A
CN108147795A CN201711497027.6A CN201711497027A CN108147795A CN 108147795 A CN108147795 A CN 108147795A CN 201711497027 A CN201711497027 A CN 201711497027A CN 108147795 A CN108147795 A CN 108147795A
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weight
substrate material
parts
aggregate
castable
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CN201711497027.6A
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王杉杉
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Jiaxing New Building Materials Co Ltd
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Jiaxing New Building Materials Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/1015—Refractories from grain sized mixtures containing refractory metal compounds other than those covered by C04B35/103 - C04B35/106
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3865—Aluminium nitrides
    • C04B2235/3869—Aluminium oxynitrides, e.g. AlON, sialon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428—Silicon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5228—Silica and alumina, including aluminosilicates, e.g. mullite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5236—Zirconia
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

The present invention relates to kilneye castables after a kind of 2500T cement kilns, and including aggregate and substrate material, the weight proportion of the aggregate and the substrate material is 7：3, the grain size of the aggregate is 0.2~10mm, and the grain size of the substrate material is 0.088~0.045mm；The aggregate include the zirconium spinel of 25~40 parts by weight, the titanium corundum of 28~48 parts by weight, the silicon carbide of 10~15 parts by weight, 10~16 parts by weight aluminium oxynitride；The substrate material includes metal silicon powder, oxidation silica fine powder, alumina powder.The present invention selects suitable aggregate, and substrate material can form high abrasion, high thermal shock, corrosion resistant castable, even green body, good thermal shock, additive forms ductile structure, while fiber forms drawing effect, the whole thermal shock resistance for improving castable, greatly enhance its fold resistance and scour resistance simultaneously, after cement kiln at kilneye under mal-condition, service life is long, and the replacement cycle is long, reduce production cost, greatly improve production efficiency.

Description

Kilneye castable after a kind of 2500T cement kilns
Technical field
The present invention relates to fire resisting material field, kilneye castable after specifically a kind of 2500T cement kilns.
Background technology
Greatly, wind speed is higher for the variation of kilneye spot temperature after cement kiln, and thermal current includes a large amount of tiny clinker particles, rear kiln Mouth is directly washed away and is corroded by dust-laden material for a long time, easily castable is made to come off, currently on the market existing wear-resistant castable, The silicon carbide mullite wear-resistant castable as disclosed in patent No. CN103819204B, at the position in use, generally existing is resistance to The defects of performance is not high, high temperature resistance is poor and thermal shock resistance is not strong is ground, causes damage frequent, the service life is not grown.In addition Present rotary kiln requires construction period harsher, it is desirable that short construction period, baking kiln is fast, and can put into production than faster makes With this just proposes lining body material higher requirement, and existing castable has been difficult to meet the needs of market.Also have to cement Structure after kiln at kilneye is improved, to overcome drawbacks described above, a kind of cement as disclosed in Patent No. CN202284700 Kilneye elbow after kiln, but effect is not still notable, it is difficult to reach requirement, production efficiency is caused to be difficult to improve always.
Invention content
The purpose of the invention is to overcome existing castable refractory existing above-mentioned when kilneye uses after cement kiln Defect provides kilneye castable after a kind of cement kiln, uses material formula and suitable proportioning using novel, reaches high abrasion Property, corrosion resistance also with good thermal shock resistance, can overcome condition severe at kilneye after cement kiln, and service life is long.
The present invention adopts the following technical scheme that reach above-mentioned purpose：Kilneye castable after a kind of 2500T cement kilns, Including aggregate and substrate material, the weight proportion of the aggregate and the substrate material is 7：3, the grain size of the aggregate for 0.2~ 10mm, the grain size of the substrate material is 0.088~0.045mm；The zirconium spinel of the aggregate including 25~40 parts by weight, 28~ The titanium corundum of 48 parts by weight, the silicon carbide of 10~15 parts by weight, 10~16 parts by weight aluminium oxynitride；The substrate material includes gold Belong to silicon powder, oxidation silica fine powder, alumina powder.
Preferably, zirconium spinel of the zirconium spinel including 6~20% 6~10mm, 40~65% 3~6mm The zirconium spinel of zirconium spinel, 20~40% 1~3mm.
Preferably, the composition of the particle size range of the titanium corundum is as follows：The titanium corundum of 5~15% 5~8mm, 30~ The titanium corundum of 55% 3~5mm, the titanium corundum of 20~45% 1~3mm.
Preferably, weight content is not less than 95% in the zirconium spinel.
Preferably, the grain size of the metal silicon powder is no more than 5 microns.
Preferably, castable further includes additive, including mullite fiber, Zirconium oxide fibre and stainless steel fibre.
Additive is added in castable, can be ductile structure to be formed in castable body, while fiber forms drawing Effect, it is whole to improve the thermal shock resistance of castable, while greatly enhance its fold resistance and scour resistance.
Preferably, the addition parts by weight of the additive each component are：30~45 parts of mullite fiber, Zirconium oxide fibre 15~30 parts, 20~45 parts of steel fibre.
Preferably, the additive further includes 15~25 parts of explosion-proof fiber.
Preferably, further including fused silica powder in the substrate material, the additive amount of the quartz glass is the matrix Expect the 1~3% of total amount.
Preferably, the content of silica is not less than 99% in the quartz glass.
By implementing above-mentioned technical proposal, the present invention selects suitable aggregate, and substrate material can form high abrasion, high fever Shake, corrosion resistant castable, even green body, good thermal shock, additive forms ductile structure, while fiber forms drawing effect Should, it is whole to improve the thermal shock resistance of castable, while its fold resistance and scour resistance are greatly enhanced, after cement kiln at kilneye Under mal-condition, service life is long, and the replacement cycle is long, reduces production cost, greatly improves production efficiency.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
Kilneye castable after a kind of 2500T cement kilns, including aggregate and substrate material, the weight of the aggregate and the substrate material Match is 7:3；Aggregate include the zirconium spinel of 28 parts by weight, the titanium corundum of 45 parts by weight, 11 parts by weight silicon carbide and 16 The aluminium oxynitride of parts by weight；Particle size range is in 0.2~10mm, and average grain diameter is in 5~6 mm.Substrate material metal silicon powder, oxidation Silica fine powder, alumina powder, particle size range is in 0.088~0.045mm, and average grain diameter is in 0.03mm.Wherein, in aggregate, zirconium point Spar purity by weight ＞ 95.5%, the particle size range of zirconium spinel are distributed in 1~10mm, and specific composition is：25% 6~10mm Zirconium spinel, the zirconium spinel of 30% 3~6mm, 45% 1~3mm zirconium spinel.The composition of the particle size range of titanium corundum It is as follows：The titanium corundum of 15% 5~8mm, the titanium corundum of 30% 3~5mm, 55% 1~3mm titanium corundum.
Embodiment 2
Kilneye castable after a kind of 2500T cement kilns, including aggregate and substrate material, the weight of the aggregate and the substrate material Match is 7:3；Aggregate include the zirconium spinel of 28 parts by weight, the titanium corundum of 45 parts by weight, 11 parts by weight silicon carbide and 15 The aluminium oxynitride of parts by weight；Particle size range is in 0.2~10mm, and average grain diameter is in 5~6 mm.Substrate material metal silicon powder, oxidation Silica fine powder, alumina powder, particle size range is in 0.088~0.045mm, and average grain diameter is in 0.03mm.Wherein, in aggregate, zirconium point Spar reaches 95.5%, and the particle size range of zirconium spinel is distributed in 1~10mm, and specific composition is：The zirconium point of 25% 6~10mm Spar, the zirconium spinel of 30% 3~6mm, 45% 1~3mm zirconium spinel.The composition of the particle size range of titanium corundum is as follows： The titanium corundum of 15% 5~8mm, the titanium corundum of 30% 3~5mm, 55% 1~3mm titanium corundum.The additive is included not Come 30~45 parts of mineral wool, 15~30 parts of Zirconium oxide fibre, 20~45 parts of steel fibre, the average diameter of fiber 5~10mm it Between.
Embodiment 3
Kilneye castable after a kind of 2500T cement kilns, including aggregate and substrate material, the weight of the aggregate and the substrate material Match is 7:3；Aggregate include the zirconium spinel of 29 parts by weight, the titanium corundum of 45 parts by weight, 10 parts by weight silicon carbide and 15 The aluminium oxynitride of parts by weight；Particle size range is in 0.2~10mm, and average grain diameter is in 5~6 mm.Substrate material metal silicon powder, oxidation Silica fine powder, alumina powder, fused silica powder, particle size range is in 0.088~0.045mm, and average grain diameter is in 0.03mm.Wherein, In aggregate, zirconium spinel reaches 95.5%, and the particle size range of zirconium spinel is distributed in 1~10mm, and specific composition is：The 6 of 25%~ The zirconium spinel of 10mm, the zirconium spinel of 30% 3~6mm, 45% 1~3mm zirconium spinel.The particle size range of titanium corundum Composition is as follows：The titanium corundum of 15% 5~8mm, the titanium corundum of 30% 3~5mm, 55% 1~3mm titanium corundum.It is described to add Agent is added to include 30~45 parts of mullite fiber, 15~30 parts of Zirconium oxide fibre, 20~45 parts of steel fibre, the average diameter of fiber exists Between 5~10mm.

Claims (4)

1. kilneye castable after a kind of 2500T cement kilns, including aggregate and substrate material, the weight of the aggregate and the substrate material Amount proportioning is 7：3, the grain size of the aggregate is 0.2~10mm, and the grain size of the substrate material is 0.088~0.045mm；The bone Material include the fused alumina zirconia of 25~40 parts by weight, the titanium corundum of 28~48 parts by weight, 10~15 parts by weight silicon carbide, 10~16 weights Measure the aluminium oxynitride of part；The substrate material includes metal silicon powder, oxidation silica fine powder, alumina powder.
A kind of 2. kilneye castable after 2500T cement kilns according to claim 1, which is characterized in that the fused alumina zirconia packet Include the fused alumina zirconia of the fused alumina zirconia of 6~20% 6~10mm, the fused alumina zirconia of 40~65% 3~6mm, 20~40% 1~3mm.
3. kilneye castable after a kind of 2500T cement kilns according to claim 1, which is characterized in that the titanium corundum The composition of particle size range is as follows：The titanium corundum of 5~15% 5~8mm, the titanium corundum of 30~55% 3~5mm, the 1 of 20~45% The titanium corundum of~3mm.
4. kilneye castable after a kind of 2500T cement kilns according to claim 1, which is characterized in that castable further includes Additive, including mullite fiber, Zirconium oxide fibre and stainless steel fibre.
CN201711497027.6A 2017-12-31 2017-12-31 Kilneye castable after a kind of 2500T cement kilns Pending CN108147795A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108275984A (en) * 2017-12-31 2018-07-13 嘉兴新耐建材有限公司 Kilneye castable after a kind of 5000T cement kilns
WO2023098567A1 (en) * 2021-12-01 2023-06-08 北京金隅通达耐火技术有限公司 Titanium composite corundum silicon carbide wear-resistant castable material for kiln outlet of cement kiln, and preparation method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582270A (en) * 1981-06-26 1983-01-07 旭硝子株式会社 Sic-containing castable refractories
CN101492303A (en) * 2009-03-09 2009-07-29 浙江锦诚耐火材料有限公司 Flame-proof pouring material special for tertiary air tube shut-off device
CN105294127A (en) * 2015-11-19 2016-02-03 长兴兴鹰新型耐火建材有限公司 Pouring material for cement kiln tertiary air duct

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582270A (en) * 1981-06-26 1983-01-07 旭硝子株式会社 Sic-containing castable refractories
CN101492303A (en) * 2009-03-09 2009-07-29 浙江锦诚耐火材料有限公司 Flame-proof pouring material special for tertiary air tube shut-off device
CN105294127A (en) * 2015-11-19 2016-02-03 长兴兴鹰新型耐火建材有限公司 Pouring material for cement kiln tertiary air duct

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
徐国涛: "RH真空处理装置炉衬材料的发展及改造", 《武钢技术》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108275984A (en) * 2017-12-31 2018-07-13 嘉兴新耐建材有限公司 Kilneye castable after a kind of 5000T cement kilns
WO2023098567A1 (en) * 2021-12-01 2023-06-08 北京金隅通达耐火技术有限公司 Titanium composite corundum silicon carbide wear-resistant castable material for kiln outlet of cement kiln, and preparation method therefor

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